Deep dive into Factory Method with 5W+1H, folder tree, and real Go implementation in clean/hexagonal style.
Hello,
My Name is
Firman Agam
Backend Engineer with experience building scalable backend systems in enterprise and product-driven environments. Specialized in Golang, REST/gRPC APIs, and system design, with hands-on experience improving performance, scalability, and reliability of production systems. Strong background in translating business requirements into robust technical solutions.
Developer Profile
5+
Years Experience
20+
Completed Projects
10+
Production Services
About Firman Agam
Jakarta, Indonesia, 13910
Developed backend systems for promo, loyalty, subscription, gamification, and campaign features used in production.
Designed and developed a waste tracking product used by multiple tenants and field operation teams.
Developed and maintained the Pradana backend product supporting loan-related business processes.
Always Learning
Curiosity-first mindset for backend architecture and product delivery.
Backend Engineer with experience building scalable backend systems in enterprise and product-driven environments. Specialized in Golang, REST/gRPC APIs, and system design, with hands-on experience improving performance, scalability, and reliability of production systems. Strong background in translating business requirements into robust technical solutions.
Designed and implemented high-performance promo evaluation services using Golang and gRPC.
Character
Collaborative, accountable, and structured in execution from planning to production support.
Open for backend, platform, and product engineering work. — agamwork28@gmail.com.
My Projects
Top starred public repositories from GitHub, filtered to active non-fork projects.
Showing 6 of 25 projects
Collection of coding challenge solutions and algorithm practice in Go.
Go
Updated Feb 2026
#coding-challenge
#coding-interviews
Node.js backend API service for a learning platform.
JavaScript
Updated Feb 2026
Golang blog backend implementing Domain-Driven Design principles.
Go
Updated Feb 2026
Personal portfolio website with bilingual CV, engineering blog, and project showcase.
CSS
Updated Feb 2026
Production-focused engineering experiments and implementation notes.
Unknown
Updated Feb 2026
TypeScript frontend app for a learning platform.
CSS
Updated Feb 2026
Recent Writing
Technical notes from real project and system design experience.
Deep dive into Abstract Factory with 5W+1H, folder tree, and real Go implementation in clean/hexagonal style.
Deep dive into Builder with 5W+1H, folder tree, and real Go implementation in clean/hexagonal style.
My Services
Core technical capabilities and tooling.
backend
Golang
REST API
gRPC
Spring Boot
PostgreSQL
frontend
React.js
Next.js
HTML
CSS
JavaScript
architecture
System Design
Scalability Optimization
Reliability Engineering
Transactional Consistency
tooling
ELK Stack
Apigee
Google Spreadsheet Automation
Telegram Bot Integration
Git